Official NHA Assessment

Race 8: NEXT TURFFONTEIN RACEMEETING SUNDAY 22 JANUARY MR 66 HANDICAP (Open)

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Line Horse
Feather The Nest
Reference for assessment
Exact Matches
0 / 18
Calculated = Official
Close Matches
2 / 18
Within 2 points
Significant Diffs
13 / 18
More than 5 points
Detailed Assessment
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Pos  Horse                Age  Weight  Fin  Lengths  WFA   Pre   Race Rating  New   Adj  
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1    King Of Venus        4    57.0    1    0.00     6.0   68    60           68    +0
2    Feather The Nest     4    56.0    2    2.25     6.0   58    58           58    +0
3    Power Ranger         7    56.5    3    3.00     0.0   59    71           71    +12
4    Big City Girl        4    55.0    4    4.00     6.0   55    56           56    +1
5    Twice As Wild        6    55.0    5    6.25     0.0   56    68           68    +12
6    Dark Tide            5    54.0    6    7.35     0.0   59    66           66    +7
7    What A Tiger         5    57.5    7    8.35     0.0   68    73           73    +5
8    Back To Basics       3    58.0    8    8.60     5.0   62    64           64    +2
9    Jet Cat              9    58.5    9    9.50     0.0   63    75           75    +12
10   Scottadito           3    58.0    10   10.00    5.0   62    64           64    +2
11   Giancarlo            2    52.0    11   10.50    3.5   54    55           55    +1
12   Bridge Of Spies      6    52.5    12   12.00    0.0   51    63           63    +12
13   Lady Sanza           3    59.5    13   12.75    5.0   65    67           67    +2
14   Timbavati River      3    59.0    14   13.00    5.0   64    66           66    +2
15   West Coast Lover     4    59.5    15   15.50    6.0   65    65           65    +0
16   Black Burner         3    59.5    16   34.00    5.0   65    67           67    +2
99   Freedom Dancer       4    52.0    99   0.00     6.0   -     50           50    +0
99   Written In Stone     9    59.0    99   0.00     0.0   -     76           76    +0
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Horse-by-Horse Comparison

Pos Horse Pre-Rating Official New Calculated Discrepancy WFA (kg) Line Horse Calculation
1 King Of Venus 68 87 68 +19 6.0 -
2 Feather The Nest Line 58 54 58 -4 6.0
3 Power Ranger 59 69 71 -2 0.0 -
4 Big City Girl 55 59 56 +3 6.0 -
5 Twice As Wild 56 51 68 -17 0.0 -
6 Dark Tide 59 53 66 -13 0.0 -
7 What A Tiger 68 71 73 -2 0.0 -
8 Back To Basics 62 72 64 +8 5.0 -
9 Jet Cat 63 60 75 -15 0.0 -
10 Scottadito 62 55 64 -9 5.0 -
11 Giancarlo 54 45 55 -10 3.5 -
12 Bridge Of Spies 51 48 63 -15 0.0 -
13 Lady Sanza 65 58 67 -9 5.0 -
14 Timbavati River 64 79 66 +13 5.0 -
15 West Coast Lover 65 60 65 -5 6.0 -
16 Black Burner 65 60 67 -7 5.0 -
99 Freedom Dancer - 40 50 -10 6.0 -
99 Written In Stone - 67 76 -9 0.0 -
Assessment Methodology
Calculation Steps:
  1. Identify Line Horse - consistent performer used as reference
  2. Calculate WFA Allowance based on age, distance, and month
  3. Apply Drag Adjustment for beaten margin
  4. Calculate Actual Weight Performance:
    Weight - Drag - WFA
  5. Compare to Line Horse to determine race rating
  6. Apply special rules (maiden caps, layoff allowance)
Key Formulas:
  • Drag Effect: Varies by distance (see Benchmarks page)
  • 1 length ≈ 1kg at 1 mile (1600m)
  • WFA Scale: Based on Admiral Rous's 1855 table
  • Rating Points: 1kg = 2 rating points